Vertical boiler



\N0 Modem B.J.M00RB. VERTICAL BOILBR.

yNo.42a839. PatentedApr.z9,189o.

Fll.

Nrrnn *rares EDWARD JJMOORE, 0F PHI vEnTlcA AfrnN'r "tric t LADEIPHIA, PENNsnry-ANIA.

i.. BiolLEn ,application filed May 9, 1889,

-To all whom it may'concrn: y,

Beit known that I, EDWARD J. MOORE, a citizen of the United States, and a residenty of Philadelphia, Pennsylvania, have invented certain Improvements in Vertical Boilersl of' which Athe followingis a specification.

The object of my invention is to construct a vertical tubular boiler ot' what is known as the fporcupine type, by which an increased Steemgenerating space is obtained and by which steam at high pressure can be readily .p generated. These objects I attain in the fol-A lowing manner, reference being had to the accompanying drawings, in which;-

, Figure 1 is asectional elevation of -my imf proved steam-boiler with the tubular portion partly in lsection and partly in elevation.

Fig. 2 is a vertical section on the line 1 2, Fig.

3. Fig. 3 is a sectional plan view on the line 3 4, Fig. 1; and Fig. 4 is a sectional plan on the line 5 6, Fig. 1.

Ads the casing of the boiler, made in the forni of a tube and mounted on a suitable foundation'.

B is the combustion-chamber, b the gratebars, and@ the ash-pit, the combustion-chainber being of the usual form.

Centrallysituated in the vertical casing A is the boilerproper D, extending through the combustion ehamberxinto the ash-pit. On p each side of this boiler D is a bridge-wall d,

and back of thebridgc-wall is a second comlbustion-chamber 1l', communicating with which is an air-chamber A', having an inlet a for the air which mingles with the products "oepmbustion lThe inlet of air to this chambeifcan be regulated by a suitable door or `valvdas circumstances require. The .upper .portibn 'of the boiler D is enlarged, forming a 4o fstearn-dorne'D, having concave top and bot- ."-'tom platesee. Passing through and expanded in these plates are vvertical tubes E, through which the products of combustion pass.

The roof BI of the combustion-chamber ex- 45 tends partially around the boiler D, as shown,

stanti No.` $10,163.' v ci modem/- plate F vuntil they reach the tubes E, through which they pass to the stack.` Thus all portions of the boiler are heated uniformly, and the products of combustion cannot pass di- Vrectly from the furnace to the stack.

Projecting in a spiral line from the body of the boiler D are a series of tubes G, bent as shown and expanded into the body of the ral passage formed by the plate F, so that the products of combustion in their spiral course` through this passage must pass in contact with the tubes G.

Inserted in the lower end of each benttnbe G is an extension-pipe Il, (shown in Fig. 2,) so that circulation of the water is insured, as the tubos extend 'to nearly the center of the boiler D, and consequently take water at aand by making the tubes H detachable they can be removed when it is wished to examine or repair the interior of the boiler.

I is a manhole, throughwhich access can be had to all' portions of the interior of the boiler.`

The seams of the shell of the boiler are s pistrength of the boiler.

I claim as my invention-- 1. The combination, in a steam-boiler, of the central vertical chamber with a series of looped tubes projecting from said chamber in one or more spiral li nes, substantially as specified.

having loops radiating therefrom with a spiral deiiecting-plate encircling said chamber, substantially as described. i

8. The combination of a tubular boiler, the seams of which are in a spiral line with tubes radiating from said boiler, and also arranged in a spiral line, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

EDWARD J MOORE.

Witnesses:

HENRY liowsoN, HARRY SMITH.

boiler, these tubes being contained in the spilower temperature than it taken at the sideg ral, as shown in Fig. l, thus adding to the' 2. The combination of the Kvertical chamber 

